(i 9 8) 



number of specimens were accessible. He followed DeCan- 

 dolle in the interpretation of JQ. Gambelii and both his own 

 specimens from the Pinos Altos Mountains and Dr. Kellogg's 

 figure represent J^. Gambc/it Liebman, not Nutt. : that is also 

 the reason for his describing it as a tree in Arizona. The 

 doubtful specimen described and figured in the second vol- 

 ume, PL 33, is an undescribed species. 



Following Engelmann and Kellogg, Professor Greene 

 adopted the name J£. undulata for the complex aggregate, 

 two members of which were represented on Kellogg's PI. 

 13, figs. 3 and 4; rig. 3 evidently represents 4L- Arizonica 

 Sargent and fig. 4 .-^. pungcns Liebm. That Professor Greene 

 was not satisfied with this treatment is shown by the fact that 

 he republished J%_. undulata with a figure that evidently rep- 

 resents a specimen of that species, but with deeper lobed 

 leaves than in the typical form. 



Later on in Pittonia 2: 11 2-1 14, Dec, 1890, he clearly 

 shows the relationship between J^. -pungens, J<K undulata, 

 Jj). turbinclla, j£. berberidi/blia, J^. dumosa, J^. agrifolia 

 and j9. chrysolepis ; I came to exactly the same results inde- 

 pendently, before I had looked up this reference. 



Greene's ££. undulata var. grisea, includes besides J%_. 

 grisea Liebman, ^ Arizonica Sargent and J^. oblongifolia 

 Torr. He had at that time a somewhat broader conception 

 of a species than now, and besides, the three species are so 

 closely related that most conservative botanists would regard 

 them as one. 



The other species from the region described by Greene, 

 viz. : J^. Fcndleri Liebm., J£. Emory i Torr., .Q hyftolcuca 

 Engelm., together with Greene's own J^. venustula and j^. 

 turbinclla are well treated. 



A few words may be said regarding the only manuals 

 covering the region, viz. : Coulter's Manual of the Rocky 

 Mountain Region and his Manual of Texas. In the former 

 Professor Coulter follows Engelm ann's treatment, with many 

 varieties under ^. undulata. Engelmann's variety grandi- 

 folia I have been unable to identify ; it was not in the collec- 



